The bearing types described here are provided with induction-hardened raceways. This ensures good reproducibility of hardening specifications and, therefore, consistent quality. The hardening coils used have been adapted to the various raceway designs. They are configured so as to guarantee the load capacities specified for the respective rolling element sizes.

Our patented coil shape ensures a good hardness pattern in the raceways and in the transition radii in three-row roller bearings.

Raceways in a single-row ball bearing slewing ring	Raceways of a nose ring in a three-row roller bearing slewing ring
Raceways in a single-row roller bearing slewing ring	Raceways of a nose ring in a double-row ball bearing slewing ring
Raceway of a supporting ring in a double-row ball bearing slewing ring